ImagickDraw::setGravity

(PECL imagick 2, PECL imagick 3)

ImagickDraw::setGravitySets the text placement gravity

说明

public ImagickDraw::setGravity(int $gravity): bool
警告

本函数还未编写文档,仅有参数列表。

Sets the text placement gravity to use when annotating with text.

参数

gravity

One of the GRAVITY constant (imagick::GRAVITY_*).

返回值

没有返回值。

示例

示例 #1 ImagickDraw::setGravity() example

<?php
function setGravity($fillColor, $strokeColor, $backgroundColor) {

$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(1);
$draw->setFontSize(24);

$gravitySettings = array(
\Imagick::GRAVITY_NORTHWEST => 'NorthWest',
\Imagick::GRAVITY_NORTH => 'North',
\Imagick::GRAVITY_NORTHEAST => 'NorthEast',
\Imagick::GRAVITY_WEST => 'West',
\Imagick::GRAVITY_CENTER => 'Centre',
\Imagick::GRAVITY_SOUTHWEST => 'SouthWest',
\Imagick::GRAVITY_SOUTH => 'South',
\Imagick::GRAVITY_SOUTHEAST => 'SouthEast',
\Imagick::GRAVITY_EAST => 'East'
);

$draw->setFont("../fonts/Arial.ttf");

foreach (
$gravitySettings as $type => $description) {
$draw->setGravity($type);
$draw->annotation(50, 50, '"' . $description . '"');
}

$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);

header("Content-Type: image/png");
echo
$imagick->getImageBlob();
}

?>

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